Hi All, This is my first time posting here. I have posted this elsewhere but thought I'd try here as well.
I've recently been given a receiver with no history.
I'd like to use it as I have not had a good sound system for a long time (read as I got married and had kids).
Although it is old this Yamaha looks and feels like a good quality unit.
But,.... it doesn't work.
It will start up for 1 second or 2, the display lights up and then it shuts down.
I have looked everywhere for info regarding this, downloaded the service manual, and it looks like the power supply is out of spec and potentially the temperature sensor could be blown.
When booted into diagnostic mode it shows a code, DC:007 PS:034.
According to the manual DC:007 is in range but the PS:034 out of the 36 to is low and triggers the protection circuit.
The problem is, I really don't know what that means or how to resolve it.
Other thing I found was THM:000. Now this is supposed to be between 9 and 167/177 (depending on region)
This may indicate that the temp sensor is stuffed, or that the low voltage is preventing it from reporting properly giving my a 000.
But I'll concentrate on the power supply first.
image below is form manual
Is there anyone who could point me in the right direction or help me troubleshoot the problem?
I'm not afraid to pull it apart and I'm pretty handy with a soldering iron.
Thanks, Roy.